Device for making loops in wire.



Patented July I0, 1900.

C. R. HARTMANN. DEVICE FOR MAKING LOOPS IN WIRE.

(Application filed Nov. '17, 1899.)

(No Model.)

W/ TNE SSE S A TTOHNE-YS.

UNITED STATE ATENT FFIGE.

CHARLES R. H ART'MANN, or new YORK, N. v.

DEVICE FOR MAKING LOOPS IN WIRE.

SPECIFICATION forming part of Letters Patent No. 653,556, dated July 10,1900.

Application filed November 17, 1899. Serial No. 737,324. (No model.)

To aZZ whom it may concern:

Be it known that 1, CHARLES R. HARTMANN, of the city of New York,borough of Manhattan, in the county and State of New York, have inventeda new and Improved Device for Making Loops in Wire, of whichthefollowing is full, clear, and exact description.

The object of the invention is to provide a device which may be carriedin the pocket and is especially adapted for forming eyes or loops at theends of wire strings for musical instruments, but which may be employedwith equally good results where an eye is required at the end of anypiece or strand of wire.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of the improved device. Fig. 2 is alongitudinal section through the major portion of the device, and

ig. 3 is a view representing a wire after the loop or eye has beenformed therein.

A represents the body of the device, which is in the form of a standardand is provided with a longitudinal bore 10, extending from end to end.A set-screw 11 is passed through one side of the body at any desiredpoint between its ends, the inner extremity of which.

screw enters the bore 10, as shown in Fig. 2. The body A is providedwith a lower head 12, which is roughened in any approved manner, so thatthe body may be firmly held, for example, between the thumb and fingersof the hand, and the body is further provided with an upper head 13, inwhich latter head an ex terior groove 14 is produced.

In addition to the body A a forming-arm B is employed, which is made ofspring material and is practically yoke-shaped in general contour,comprising a bottom member 15, having a sleeve 16 made integraltherewith and fitted to turn in the groove 14 at the upper head of thebody A, together with an upper member 17 and a connecting member 18, thelatter member being of less thickness than the upper and lower members,so that the up per member may bereadily drawn down'in direction of thelower member or may spring up therefrom. Theupper member 17 of theforming-arm B terminates in an upwardlycurved nose 19, as isparticularly shown in Figs. 1 and 2.

The wire 20, which is to be manipulated, is passed through the bore 10in the body and around the nose 19, thereby forming a loop 21, and theend of the wire which is passed around the nose is likewise carried downinto the bore 10 of the body A, and the set-screw 11 is then screwedinward, so that it will bite firmly against the parallel-strands of thewire, as is indicated in Fig. 2. The body A is now held in one hand, andthe forming-arm B is turned on the body by means of the fingers of theother hand, thus causing the parallel strands of the wire to wrap aroundeach other and form a complete eye or loop 22 at that portion of thewire which is passed over the nose 19, as is illustrated in Fig. 3, thewire adjacent to the eye 22 being reinforced by a twist, as shown at 23in the said Fig. 3.

After the screw 11 is loosened to release the wire 20 the wire may beremoved from the forming-arm B and drawn from the body A.

When a tool is employed such as has been above described, it is obviousthat a loop or eye may be quickly and conveniently formed in the end ofany strand or piece of wire. It is furthermore obvious that the deviceconsists, practically, of three parts-the body,

forming-arm, and set-screw-and that as the wire travels between theset-screw and the nose of the forming-arm the upper member of theforming-arm is drawn down toward the body proportionately to theshortening of the wire, thus preventing the wire being 0 which loop ofwire is continued into the body 100 for an engagement with the clampingdevice.

2. A device for making loops in wire, consisting of a tubular body, aclamping device carried by the body, and a forming arm mounted torevolve upon the body, which arm is substantially yoke-shaped and ispro- Vided with a curved nose at the free end of its upper member.

3. A device for forming loops or eyes in wire, consisting of a tubularbody, a clamping device entering a chamber in the body, and aforming-arm mounted to turn around the body, which forming-arm issubstantially yoke-shaped and constructed of spring material, beingformed with an upwardly-curved nose at the free endof itsupper member,as described.

4. A device for forming loops or eyes in wire, comprising a tubularbody, a. set-screw passed through one side of the body into the CHAS. R.HARTMANN.

H Witnesses:

EUGEN A. FLAMMYRL FRANCIS T. HARTMANN.

